The German tuner Hartge has revealed its plans for the BMW X6
. Their intended package for the X6 includes a performance upgrade, additional technical changes, newly designed rims, and several interior refinements. In short, it's going to be a totally tweaked out car. The performance upgrade sees a supplementary control unit fitted in the engine compartment, which boost the power output of the X6 xDrive 40d from 306 horsepower to 354 horsepower.